Here is the full list of all 80 Runestone Keeper achievements.
How dare you...traitor!
Believe in the God of Evil
Activate "Spell Breaker" Runeword and complete on any difficulty
Complete with Merlin on any difficulty
Activate "Tyrant" Runeword and complete on any difficulty
Reach floor 21 in Abyss mode
Reach floor 30 in Endless mode
Complete with Alexander on any difficulty
Activate "Pagan" Runeword and complete on any difficulty
Complete with Azir on any difficulty
Kill an elite monster while stacked with 15 weakness effect
Activate "Fresh Blood" Runeword and complete on any difficulty
Complete with Lilith on any difficulty
Killed by an Overlord monster
Single strike cause more than 100 damage
Activate "Conqueror" Runeword and complete on any difficulty
Complete with Dellamorey on any difficulty
Soul point reach 80
Activate "Lucky" Runeword and complete on any difficulty
Complete with Balerio on any difficulty
Believe in the God of Devastation
Believe in the God of Vengeance
Ahhhhhhhhhhhhhhhhhhh
Complete with Hogg
Hero reach level 12
Having 9 tattoos!
Kill an elite monster while stacked with 20 cursed effect
Complete with Svafa
Reach floor 20 without believing in any Gods
Unlock Hogg
Try heads next time.
Be really vigorous
Believe in the Goddess of Benevolence
Kill an elite monster while stacked with 40 erosive effect
Reach all full upgrades
Killed by a bomb
Clear all arenas throughout the entire game in Normal mode
Win against Ancient Memories
Complete with Morte on any difficulty
Kill 200 monsters in one go
Be really vital
Betray two Gods in a row
Collect 1000 coin in one game journey
Die from the Lich quest
Believe in the Holy Contractor
Interchange life percentage with a monster
Kill all the wizards in a Wizard dungeon
Complete with Guy
Win against Nightmare Fiend
Kill 15 elite monsters in one go
Simultaneously sustain erosion, curse, toxin and weakness effect
Hero reach level 10
Kill an Overlord monster
Unlock Svafa
Forge a runestone
Killed by a monster explosion
All attributes tuned to 5
Killed by a poison trap
Die in an arena
Obtain a piece of rare equipment
Kill a Screen Block monster
Believe in the God of War
Reach one full upgrade
Betray a God
Believe in the Goddess of Magic
Get through a dungeon without killing anything
It is your day.
Believe in the God of Treasure
Use an altar
Who's this little fella?
Killed by a spike trap
Die on 1st floor
Kill a ranged elite monster
Believe in a God
Believe in the Guardian of Rock
And much more to be spilled!
Collect your first piece of runestone
Find and clear an arena
Light the torch in the tutorial